<div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div class="h5"> </div></div> Instead of turning off sync, you can also set the max-lateness property to -1 (for video). That way, you still get synchronisation between audio and video (when the video arrives on time), but none of the frames will be dropped. </blockquote></div> I tried what you suggested, but unfortunately that doesn't seem to work for me. The video rendering just seems to mostly hang, with a frame update every few seconds or so... Anyway, I have a new problem now, although I have kept it in this thread as it is possibly related. Once again I'm getting different behaviour between my dev box and the test machine. On my dev box everything seems to work fine, but on the test machine, I am getting the following errors (with the gst-launch command I used): gst-launch-0.10 --gst-debug-no-color --gst-debug=ffmpeg:3 uridecodebin uri=rtsp://someurl ! queue ! decodebin2 ! xvimagesink sync=false Setting pipeline to PAUSED ... Pipeline is live and does not need PREROLL ... Setting pipeline to PLAYING ... New clock: GstSystemClock 0:00:00.274730304 20037 0x777e20 INFO ffmpeg gstffmpegenc.c:972:gst_ffmpegenc_register: Add encoder gif (100) please 0:00:00.276217696 20037 0x777e20 INFO ffmpeg gstffmpegenc.c:972:gst_ffmpegenc_register: Add encoder jpegls (12) please 0:00:00.284507379 20037 0x777e20 INFO ffmpeg gstffmpegenc.c:972:gst_ffmpegenc_register: Add encoder gsm (86037) please 0:00:00.284516877 20037 0x777e20 INFO ffmpeg gstffmpegenc.c:972:gst_ffmpegenc_register: Add encoder gsm (86049) please 0:00:00.286525443 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder dsicinvideo (97) please 0:00:00.286911400 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder gif (100) please 0:00:00.287301547 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder kmvc (88) please 0:00:00.287933842 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder nuv (87) please 0:00:00.288488192 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder smackvid (86) please 0:00:00.288704987 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder targa (96) please 0:00:00.288760093 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder tiertexseqvideo (98) please 0:00:00.288768614 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder tiff (99) please 0:00:00.289096181 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder VMware video (92) please 0:00:00.289755576 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder dsicinaudio (86045) please 0:00:00.289808378 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder imc (86046) please 0:00:00.289819064 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder gsm (86037) please 0:00:00.289824442 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder gsm_ms (86049) please 0:00:00.290075530 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder mpc sv7 (86047) please 0:00:00.290263759 20037 0x777e20 INFO ffmpeg gstffmpegdec.c:2269:gst_ffmpegdec_register: Add decoder smackaud (86042) please 0:00:02.388886686 20037 0x777e20 ERROR ffmpeg :0:: ac-tex damaged at 20 5 0:00:02.388919303 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 225 0:00:02.388928313 20037 0x777e20 ERROR ffmpeg :0:: marker does not match f_code 0:00:02.388936066 20037 0x777e20 ERROR ffmpeg :0:: ac-tex damaged at 0 2 0:00:02.388943190 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 82 0:00:02.388957438 20037 0x777e20 ERROR ffmpeg :0:: I cbpc damaged at 6 4 0:00:02.388964422 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 170 0:00:02.388978251 20037 0x777e20 ERROR ffmpeg :0:: ac-tex damaged at 5 6 0:00:02.388984886 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 251 0:00:02.388996061 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 330 0:00:02.389011916 20037 0x777e20 ERROR ffmpeg :0:: ac-tex damaged at 6 10 0:00:02.389019529 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 416 0:00:02.389032520 20037 0x777e20 ERROR ffmpeg :0:: ac-tex damaged at 4 12 0:00:02.389040133 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 496 0:00:02.389057314 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 580 0:00:02.389083785 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 656 0:00:02.389094471 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 739 0:00:02.389101875 20037 0x777e20 ERROR ffmpeg :0:: marker does not match f_code 0:00:02.389110396 20037 0x777e20 ERROR ffmpeg :0:: ac-tex damaged at 1 2 0:00:02.389116961 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 83 0:00:02.389124923 20037 0x777e20 ERROR ffmpeg :0:: I cbpy damaged at 1 4 0:00:02.389130790 20037 0x777e20 ERROR ffmpeg :0:: Error at MB: 165 .... Every time I get a "spurt" of these ffmpeg errors, I get distortion in the video playback (presumably the decoded data is corrupted). Btw, it only seems to start happening when frame rates get up above about 20fps, and at the max resolution of the source (640x480 in this case). Any ideas of where I should go looking to sort this one out? Thanks in advance, Jono